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Debugging the Main Process
The browser window DevTools can only debug the renderer process scripts (i.e.
the web pages). In order to provide a way to debug the scripts from the main
process, Electron has provided the --debug and --debug-brk switches.
Command Line Switches
Use the following command line switches to debug Electron's main process:
--debug=[port]
When this switch is used Electron will listen for V8 debugger protocol
messages on port. The default port is 5858.
--debug-brk=[port]
Like --debug but pauses the script on the first line.
Use node-inspector for Debugging
Note: Electron doesn't currently work very well
with node-inspector, and the main process will crash if you inspect the
process object under node-inspector's console.
1. Start the node-inspector server
$ node-inspector
2. Enable debug mode for Electron
You can either start Electron with a debug flag like:
$ electron --debug=5858 your/app
or, to pause your script on the first line:
$ electron --debug-brk=5858 your/app
3. Load the debugger UI
Open http://127.0.0.1:8080/debug?ws=127.0.0.1:8080&port=5858 in the Chrome browser.